The ASUS Transformer Book Flip TP500LA is designed to give you the ultimate flexibility, with a display that can be flipped to any angle from 0 to 360 degrees. For work, use it as you would any other laptop. For games, flip it into a tablet. Or for watching movies or presentations, just flip it to any convenient angle to easily and comfortably share your screen.

Normally selling for $499, the 15-inch Asus Transformer Book Flip is on sale Monday for $399 at Microsoft online store. The first 50 people to grab the notebook at a Microsoft store will get it at $299. Promotion starts at 5 a.m.